{echo:JS::import('form');}
{echo:JS::import('editor');}
<script>
      var editor;
      KindEditor.ready(function(K) {
        editor = K.create('textarea[name="content"]', {
          uploadJson : '{url:/admin/upload_image}',extraFileUploadParams: {PHPSESSID: "{echo:$_COOKIE['PHPSESSID']}"}
        });
      });
    </script>
<h1 class="page_title">文章编辑</h1>
<div id="obj_form" class="form2">
    <form action="{url:/content/article_save}" method="post" >
        {if:isset($id)}<input type="hidden" name="id" value="{$id}">{/if}
    <dl class="lineD">
      <dt>标题：</dt>
      <dd>
        <input name="title" type="text" pattern="required" value="{$title}">
        <label>文章标题</label>
      </dd>
      </dl><dl class="lineD">
      <dt>分类：</dt>
      <dd>
        <select id="category_id"  name="category_id"   pattern="int">
        {query:name=category order=path /}
        {set:$category = Common::treeArray($items);}
        {list:items=$category}
        {set:$num = count(explode(',',$item['path']))-3;}
        <option value="{$item['id']}">{if:$num>0}├{/if}{echo:str_repeat('──',$num)}{$item['name']}</option>
        {/list}
        </select>

        <label></label>
      </dd>
      </dl><dl class="lineD">
      <dt>内容：</dt>
      <dd>
        <textarea id="content" pattern="required" name="content" style="width:700px;height:360px;visibility:hidden;">{$content}</textarea>
        <label></label>
      </dd>
    </dl>
    <div style="text-align:center"><input type="submit" value="提交" class="button">&nbsp;&nbsp;&nbsp;&nbsp;<input type="reset" value="重置" class="button"></div>
    </form>
</div>
<script type="text/javascript">
var form =  new Form();
form.setValue('category_id','{$category_id}');
</script>